"...what the principle of utility requires of me is to do for each man affected by my actions what I wish were done for me in the hypothetical circumstances that I were in precisely his situation; and, if my actions affect more than one man...to do what I wish, all in all, to be done for me in the hypothetical circumstances that I occupied all their situations..."
January 1, 1970
https://en.wikiquote.org/wiki/R._M._Hare